You can follow up to 9 farms belonging to other players. To do so, you will need to navigate to the player’s farm and press on the icon with the yellow pencil under the farm name. Once you have followed the farm, the pencil will turn into green. Now, the farm that you have chosen to follow will be displayed at the bottom in the list of players within a yellow frame.

To unfollow a farm, navigate to the player’s farm and press on the green pencil. Once you unfollowed a farm, the pencil will turn into yellow.